I also noticed that r.stream.extract finds different flow-paths than
r.watershed, which complicates comparisons between the two. The
work-around for this is to use a mask to force r.stream.extract to find
the flow-path you want.
r.stream.extract is the preferred stream extraction tool.
OK, but a flow accum raster is required for running r.stream.order
(which outputs flow_accum) and AFAIK, the only way to get a flow_accum
raster is with r.watershed.
??
BTW, I'm not the only one who has encountered this:
http://gis.stackexchange.com/questions/201118/how-to-obtain-accumulation-map-from-r-stream-extract
Thanks,
Best,
Micha
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